package com.sjl.util;

import java.util.UUID;

public class MyId {

	public static String getUUID() {
		String uuid=UUID.randomUUID().toString().replaceAll("-", "");
		return uuid;
	}
	
	/**
	 * 获取老师卡号
	 * @return
	 */
	public static String getTeachersCardNo() {
		return "t-"+getUUID();
	}
	
}
